Carline.



F. MATHEWS.

GARLINE.

' APPLIOATION FILED JULY 5, 191sA L1 15,030 Patented Oct. 27, 1914.

TINTTED STATES PATENT OFFICE.

FRED MATHEWS, 0F CHICAGO, ILLINOIS, ASSIGNOB. TO CLINTON C. MURPHY, OF

CHICAGO, ILLINOIS.

CARLINE.

Specification. of Letters Patent.

Patented oet. 27,1914..

Application'led July 5, 1913. Serial NG. 777,406.

to carlincs each consisting of a single piece ol rolled metal langed lengthwise and having bifurcated ends which are adapted to be secured to the side plates of a car.

The` object of the invention is the production of a light, 4strong carline adapted both;

to support the weight of the roof covering and to brace the top of the car against stresses tending to twist or buckle it out of square.

A further object of the invention is to strengthen carlines having bifurcated ends at the crotches where the bifurcations join the main carline stems. A

4With the above objects in View, the invention consists in a pressed metal carline of flanged channel section which decreases in depth and increases in width from the midf die toward the ends, the ends thereoil being split centrally lengthwise for some distance toward the middle, and spread apart to form straddle leg braces.

vThe invention also consists in the carline shown in the aecomp mying drawings, and in the constructional details thereof hereinafter'descrbed.

What the invention consists in is particularly pointed out in the appended claims.

In the drawings, in which like characters are used to designate the same parts of the carline in the several views,H Figure 1 is a top plan view of a carline emb'odying my in- Ventlon; Fig. 2 is a half side elevation and half longitudinal section of the same; Fig. 3 is an end view of the carline shown in Figs. l and 2, drawn to a larger scale; Fig. 4 is a transverse section, drawn to the'same scale as Fig. 3, of the carline shown in Figs. 1 and 2, on the line 4-4 in' Fig. 1 looking in the direction of the arrows and showing the end of thecarline in elevation; and Fig. 5 s a transverse mid-section of the carline shown in Figs. 1 and 2, dra-wn te the same scale as Figs. 3 and 4.

Referring to the drawings, the carline 11 consists of a metal plate of a length suilicient and of'a width such that 1t may be formed or pressed lengthwise into a channel having the extremities of its side walls 12 provided with lateral top flanges 13. These lateral top flanges are punched with holes 14, 15, through which the bolts for securing the ridge piece and urlins may be passed.

The ends of the carline slope downward from -its middle to correspond to the pitch of the car roof. The side walls of the carline decrease in height from the middle toward the ends and the bottom 16 increases in width correspondingly, the result of these variations in dimensions heilig that the carline is stiiest in the vertical plane at its middle and in the horizontal plane at its ends. Moreover, the ends of the carline are bifurcated, or horizont-ally forked, to -pr0- vide a wide spread lengthwise bearing on the sideplates, whereby the sideplates are braced by the cai-lines against stresses tend ing te distort the top of the car out of square. l

The end bifurcations or forks 17 are formed by splitting the bottom web 16 in 'for some distance from the ends. The lengthwise splits or cuts which 4sever the web terminate at their inner ends in small holes, and the metal surrounding `the margins of these holes is flanged up into beads 18 which strengthen the web at these points and prevent it from s litting farther'toward the middle after t e carline goes into l service. The side and bottom walls of the channel at the ends of the bifurcations 17 are bent outward into planes parallel to the sideplates, and the terminal bearing portions 19 thus formed are punched with holes 20 for the bolts which secure the carlines to the sideplates. This construction results in a carline having not only great lateral stillness at the ends, due to their` spreading apart, but also very considerable vertical' stili'ness at the ends, due to the increased vertical bearing on the cai-lines formed by the downturned wide end portions of the channel web. f

It is evident that the carline shown in th drawings is ca able of modifications, and that its modifie forms coine within the foregoing description of this invention, and the invention is not restricted to the precise form shown in the drawings.

I claim as my invention:

i 1. A carline comprising a rolled-metal channel-shape intermediate portion having its bottom split to form bifurcated ends, said ends having transversely arranged ex tremities formed by twisting the split bottom of the channel at its ends into the plane l5\rolled metal of channel form,

erally at their extremities into vertical planes transverse to the ends of the carline,A

and the bottom flanges thereof being twisted down and bent laterally at their extremities into the planes of the extremities of the side Walls, the extremities of said bifurcations bglug adapted to b e secured to the side plates o a car.

3. A carline having a web split at the ends and the split portions spread apart, and a bead lining the crotch between said split portions, Iformed by langing the portions of -the web adjacent to the inner ends of the s lit.

pil. A carline having a web split at the ends and the split portions spread apart, said splits terminating in holes in the web at their inner ends, said holes having flanged edges. f

5. A earline having a web increasing in width from the middle ofthe earline toward its ends, the ends of said. web being split lengthwise, and flanged holes in said web at the inner ends of the splits, said holes form ing Grot-ches whensaid split ends are separated., whereby said carline is strengthened laterally and prevented from splitting lengthwise.

Signed at Chicago, illinois, this th day of June, 1913.

innen Marincws. 

